I have a JMR that I purchased from PolyPerformance. (no affilitation)
http://www.polyperformance.com/shop/...6&cat=0&page=1
Its the most expensive hole saw notcher on the planet I think but has roller bearings instead of bushings and is beef! Works awsome and dosent deflect like some of the other notchers.
Very happy with it and I doubt Ill ever have to replace it.
Chris
